I purchased the Num Noms Nail Polish Maker for my granddaughter for Christmas . She has been wanting it since the first time she saw it demonstrated on You Tube. This was the one thing she wanted more than anything for Christmas this year. She was so excited when she opened the package. I Can't express in words the disappointment when we tried making our first bottle of polish. We read the instructions completely, making sure not to open the lid too much, as instructed. But It was impossible to get the base or color polish into the bottle without the majority oozing out the top of the bottle; wasting most of the polish and base, and making a great mess. The You Tube videos are misleading on how easy it is to fill bottles and mix polish. It was the most disappointing purchase I have ever made in my life, a complete waste of money, not to mention the disappointment my granddaughter felt. We will not be purchasing any product made by this company. Total scam. Don't waste your money.